Toyota Yaris: Sfi System / Check For Intermittent Problems
CHECK FOR INTERMITTENT PROBLEMS
HINT:
Inspect the vehicle ECM using check mode. Intermittent problems are easier to detect with the GTS when the ECM is in check mode. In check mode, the ECM uses 1 trip detection logic, which is more sensitive to malfunctions than normal mode (default), which uses 2 trip detection logic.
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Clear the DTCs.
Click here
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Change the ECM from normal mode to check mode using the GTS.
Click here
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Perform a simulation test.
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Check and wiggle the harness(es), connector(s) and terminal(s).
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CAUTION / NOTICE / HINT HINT: *: Use the GTS. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
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2. CUSTOMER PROBLEM ANALYSIS
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3...
CAUTION / NOTICE / HINT When a malfunction is not confirmed by the DTC check, troubleshooting should be carried out for all circuits considered to be possible causes of the problem...
Other information:
DESCRIPTION The main body ECU (multiplex network body ECU) controls the operation of the following lights:
Front Door Ambient Illumination Light
Front Door Ambient Illumination Light LH (Front Door Trim Board Sub-assembly LH)
Front Door Ambient Illumination Light RH (Front Door Trim Board Sub-assembly RH)
WIRING DIAGRAM
CAUTION / NOTICE / HINT NOTICE:
Inspect the fuses for circuits related to this system before performing the following procedure...
DESCRIPTION When the wireless operation can be used to lock and unlock the doors, communication between the smart door control receiver assembly and certification ECU (smart key ECU assembly) is normal. If the entry lock and unlock functions do not operate, the entry cancel function may be set through the customize function, there may be communication problems between the electrical key transmitter sub-assembly and vehicle, or there may be wave interference...
Categories
Stop the vehicle completely.
Manual transaxle:
Shift into neutral and set the parking brake.
Automatic transaxle:
Shift the selector lever to the P position and set the parking brake.
Press the push button start to turn off the engine. The ignition position is
off.
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